After reading a lot of data on the Internet, it is basically the same. It is not very convenient to enter parameters on the WebService and then use soap to transmit values. Every time you write a lot of data
Or in the common XMLHTTP mode, you only need to submit a simple parameter value pair, like: http: // localhost/AS. aspx? Xxx = BB format
The post method is as follows:
Note: The scui in the following code is a pre-written component package, which includes an asynchronous XMLHTTP component.
This component provides a setformparm (formid) method input parameter
Setparam (PARAM) input simple parameters
Sendrequestbypost (func, URL) Method Request server WebService
Createxmlhttp () initializes the XMLHTTP object for Creation
For example, the WebService page SC _test.asmx is old and sayhello
Using system;
Using system. Web;
Using system. collections;
Using system. Web. Services;
Using system. Web. Services. Protocols;
Using system. Data;
Using system. Data. sqlclient;
Using system. text;
/// <Summary>
/// SC _webservice Summary
/// </Summary>
[WebService (namespace = "http://tempuri.org/")]
[Webservicebinding (conformsto = wsiprofiles. basicprofile1_1)]
Public class SC _webservice: system. Web. Services. WebService {
Public SC _webservice (){
// If you use the designed component, uncomment the following line
// Initializecomponent ();
}
[Webmethod]
Public String sayhello ()
{
Httprequest request = system. Web. httpcontext. Current. request;
String name = request. Params ["name"];
Return "hello" + name;
}
}
To use httpcontext in WebService, you must add the following code to the Web. config file:
<WebService>
<Protocols>
<Add name = "httpget"/>
<Add name = "httppost"/>
</Protocols>
</WebService>
Client page
<HTML>
<SCRIPT type = "text/JavaScript" src = "../util/JS/commonengine. js"> </SCRIPT>
<! -- The above is a package -->
<SCRIPT type = "text/JavaScript">
// Use XMLHTTP in scui
Function Test (){
VaR fui = new scui ();
Fui. createxmlhttp ();
Fui. setparam ("name =" + document. getelementbyid ("name"). value );
// In POS Mode
Fui. sendrequestbypost (function (){
If (Fui. XMLHTTP. readystate = 4 & Fui. XMLHTTP. Status = 200 ){
// XML data returned by WebService
VaR reqxml = Fui. XMLHTTP. responsexml;
// Obtain the value
VaR text = (reqxml. childnodes) [1]. Text );
Alert (text );
Fui = NULL;
}
}, "SC _test.asmx/sayhello ");
}
// The preceding alert (text) value can get the sayhello data.
// The following is part of the code for XMLHTTP in scui.
Function scui () {This. XMLHTTP = false; this. paramstring = "";}
// Create XMLHTTP, which is relatively old and has a lot of online content, which is omitted here
// Send the request in POS Mode
Scui. Prototype. sendrequestbypost = function (C, URL ){
This. XMLHTTP. Open ("Post", URL, true );
This. XMLHTTP. setRequestHeader ("Content-Type", "application/X-WWW-form-urlencoded; charset = UTF-8 ");
This. XMLHTTP. onreadystatechange = C;
This. XMLHTTP. Send (this. paramstring );
}
// Set parameters
Scui. Prototype. setparam = function (s ){
This. XMLHTTP. paramstring = s; // If garbled characters (such as the Java background) appear in the background, use encodeuri (s) to encode the code twice and then decode it in the background, asp.net generally does not have too many problems, so you do not need to use
}
</SCRIPT>
I am still studying Asp.net. I used to mainly use Java. If any of the above is incorrect, please point out
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